The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 05, 2021

Filed:

Feb. 01, 2019
Applicant:

M31 Technology Corporation, Hsinchu County, TW;

Inventor:

Ching-Hsiang Chang, Taipei, TW;

Assignee:

M31 TECHNOLOGY CORPORATION, Hsinchu County, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03K 3/038 (2006.01); H04B 1/04 (2006.01); H04B 1/16 (2006.01); H04N 7/04 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45179 (2013.01); H03K 3/038 (2013.01); H04B 1/04 (2013.01); H04B 1/16 (2013.01); H04N 7/04 (2013.01);
Abstract

A load circuit includes a first resistive element, a first transistor and a tristate control circuit. The first transistor has a first control terminal, a first connection terminal and a second connection terminal. The first connection terminal is coupled to to one of a first amplifier output terminal and a connection node through the first resistive element. The second connection terminal is coupled to the other of the first amplifier output terminal and the connection node. The tristate control circuit has a signal output terminal coupled to the first control terminal. When the signal output terminal is in the low impedance state, the first control terminal is arranged to receive a first control signal outputted from the signal output terminal. When the signal output terminal is in the high impedance state, the first control terminal is arranged to receive a second control signal different from the first control signal.


Find Patent Forward Citations

Loading…